138747420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{15731}}^1$

素因数の和:15760

約数の個数: 108

約数和(自身を含む): 489611304

約数和(自身を除く): 350863884

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 15731, 31462, 47193, 62924, 78655, 94386, 110117, 141579, 157310, 188772, 220234, 235965, 283158, 314620, 330351, 440468, 471930, 550585, 566316, 660702, 707895, 770819, 943860, 991053, 1101170, 1321404, 1415790, 1541638, 1651755, 1982106, 2202340, 2312457, 2831580, 3083276, 3303510, 3854095, 3964212, 4624914, 4955265, 6607020, 6937371, 7708190, 9249828, 9910530, 11562285, 13874742, 15416380, 19821060, 23124570, 27749484, 34686855, 46249140, 69373710, 138747420]

約数ペア:

[(1, 138747420), (2, 69373710), (3, 46249140), (4, 34686855), (5, 27749484), (6, 23124570), (7, 19821060), (9, 15416380), (10, 13874742), (12, 11562285), (14, 9910530), (15, 9249828), (18, 7708190), (20, 6937371), (21, 6607020), (28, 4955265), (30, 4624914), (35, 3964212), (36, 3854095), (42, 3303510), (45, 3083276), (49, 2831580), (60, 2312457), (63, 2202340), (70, 1982106), (84, 1651755), (90, 1541638), (98, 1415790), (105, 1321404), (126, 1101170), (140, 991053), (147, 943860), (180, 770819), (196, 707895), (210, 660702), (245, 566316), (252, 550585), (294, 471930), (315, 440468), (420, 330351), (441, 314620), (490, 283158), (588, 235965), (630, 220234), (735, 188772), (882, 157310), (980, 141579), (1260, 110117), (1470, 94386), (1764, 78655), (2205, 62924), (2940, 47193), (4410, 31462), (8820, 15731)]